Re: [CAD_CAM_EDM_DRO] Re: CNC drill sharpening

From: "turbulatordude" <davemucha@...>

> You can save a dollar or two if you use coblat and another 50 cents
> if you use HSS, but why ?? at $47.50 for HSS or $48.00 for Cobalt or
> $50.00 for carbide.

It all depends on what you are cutting. For hard or even semi hard
metals and woods Carbide and Ceramics are great. For softer things Carbide
just doesn't take and hold the edge that Cobalt or HHS does. For many
plastics, HHS will cut better and last longer then the others. On the other
hand I've worked with a few plastics that will even eat up Ceramics....